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Milepost east of Lower Wyndham Terrace

A Grade II Listed Building in Risca, Caerphilly

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Latitude: 51.608 / 51°36'28"N

Longitude: -3.0898 / 3°5'23"W

OS Eastings: 324630

OS Northings: 190469

OS Grid: ST246904

Mapcode National: GBR J1.9ZFP

Mapcode Global: VH7B4.DVF5

Entry Name: Milepost east of Lower Wyndham Terrace

Listing Date: 31 July 2019

Grade: II

Source: Cadw

Source ID: 87787

Building Class: Transport

Location: To the E of Lower Wyndham Terrace, on the towpath to the S of the canal.

County: Caerphilly

Community: Risca East (Dwyrain Rhisga)

Community: Risca

Built-Up Area: Risca

Traditional County: Monmouthshire


The Brecknock and Abergavenny Canal was promoted in 1792 to connect the upper Usk valley to the Monmouthshire Canal at Pontymoile and from there to the sea at Newport. Construction began in 1797, with Thomas Dadford Jnr. as engineer, and the first section, from Gilwern to Llangynidr was completed in that year with the stretch as far as Brecon following in 1800. Work then stopped for a time with the result that the section to the Blaenavon Road east of Govilon was not completed until 1805, now with Thomas Cartwright as engineer. Further funds had to be raised and the last section from west of Llanfoist to Pontymoile was completed between 1809 and 1812, with William Crossley as engineer. The Crumlin arm was constructed 1792-9 and connected to the main canal at Crindau. Linked to the tramroads the canal was an important artery for trade in iron, lime and coal.

In 1848 the Monmouthshire Canal Company became the Monmouthshire Railway and Canal Company. The milepost bears the name of Monmouthshire Canal Company so must predate this. In 1865 the Monmouthshire and the Brecknock & Abergavenny Canal Companies merged becoming the Monmouthshire and Brecon Canal Company. Later still in 1880 the canal was bought out by the Great Western Railway and gradually the canal was run down until it was abandoned finally in 1962. Restoration work was begun in 1964, and the canal is once again open between Pontymoile and Brecon with the title Monmouthshire and Brecon Canal.


A small cast iron mile post. An oval carries the number ‘5 ¾’ (west of the beginning of the canal in Newport). Below this a small plaque on the post 'M C Co.', Monmouthshire Canal Company.

Reasons for Listing

Included for its special architectural interest as a rare surviving example of a canal marker post from the early operation of the canal. The canal is important for its historic interest as a key part of the early industrial development of the Gwent valleys and the development of transport links from the sources of production to the docks at Newport.

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